Scholastic debuted the seventh and final cover, by illustrator Kazu Kibuishi at the Scholastic Store in New York City on Wednesday morning (July 31) — which also happens to be Harry Potter’s birthday.

The party was packed with Harry Potter fans of all ages, a welcoming Hagrid and live snakes, toads and owls. Hundreds of fans, many of whom were dressed as their favorite Harry Potter characters, joined in a host of fun activities including potion and wand-making and even got to see the new book trailer and boxed set.

The complete series of newly jacketed books and a new boxed set will be available on August 27th.